U.S. patent application number 15/100756 was filed with the patent office on 2016-10-20 for paper money temporary storage device and paper money storage method therefor.
This patent application is currently assigned to GRG Banking Equipment Co., Ltd.. The applicant listed for this patent is GRG BANKING EQUIPMENT CO., LTD.. Invention is credited to Zhiqiang SUN, Wenqing WU, Tao ZHANG.
Application Number | 20160304307 15/100756 |
Document ID | / |
Family ID | 50168379 |
Filed Date | 2016-10-20 |
United States Patent
Application |
20160304307 |
Kind Code |
A1 |
ZHANG; Tao ; et al. |
October 20, 2016 |
PAPER MONEY TEMPORARY STORAGE DEVICE AND PAPER MONEY STORAGE METHOD
THEREFOR
Abstract
A banknote temporary storage device and a banknote storage
method thereof are provided. The banknote storage device includes a
signal collecting unit including a coded disk, a coded disk signal
sensor and a rubber wheel, where the coded disk and the rubber
wheel are arranged between the storage roller and the belt standby
roller via a same rotating shaft, and the coiling belt tightly
engages with the rubber wheel and drives the rotation of the rubber
wheel. The real-time radius of the storage roller or the belt
standby roller is obtained and the angular speed of the drive motor
can be adjusted according to the real-time radius, thereby ensuring
that the coiling belt uniformly moves at the target speed.
Inventors: |
ZHANG; Tao; (Guangzhou,
Guangdong, CN) ; WU; Wenqing; (Guangzhou, Guangdong,
CN) ; SUN; Zhiqiang; (Guangzhou, Guangdong,
CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
GRG BANKING EQUIPMENT CO., LTD. |
Guangzhou, Guangdong |
|
CN |
|
|
Assignee: |
GRG Banking Equipment Co.,
Ltd.
Guangzhou, Guangdong
CN
|
Family ID: |
50168379 |
Appl. No.: |
15/100756 |
Filed: |
October 24, 2014 |
PCT Filed: |
October 24, 2014 |
PCT NO: |
PCT/CN2014/089380 |
371 Date: |
June 1, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B65H 2513/11 20130101;
B65H 2511/14 20130101; B65H 43/00 20130101; B65H 2701/1912
20130101; B65H 2511/10 20130101; B65H 2511/14 20130101; B65H
2301/4191 20130101; B65H 2553/51 20130101; B65H 2220/11 20130101;
B65H 2220/11 20130101; B65H 2511/10 20130101; B65H 2513/10
20130101; B65H 2513/10 20130101; B65H 2513/11 20130101; B65H 29/006
20130101; B65H 2220/11 20130101; B65H 2220/03 20130101; B65H
2220/03 20130101; B65H 2220/03 20130101; B65H 2220/02 20130101 |
International
Class: |
B65H 29/00 20060101
B65H029/00; B65H 43/00 20060101 B65H043/00 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 6, 2013 |
CN |
201310661267.0 |
Claims
1. A banknote temporary storage device, comprising a storage roller
driven by a first drive motor, a belt standby roller driven by a
second drive motor and a coiling belt with two ends fixed on the
storage roller and the belt standby roller respectively, the
coiling belt being wound around the storage roller and the belt
standby roller, and being retracted and deployed between the
storage roller and the belt standby roller, wherein, the banknote
temporary storage device further comprises: a first sensor,
arranged at an inlet of the banknote temporary storage device and
configured to detect whether a banknote enters the banknote
temporary storage device; a second sensor, arranged between the
first sensor and the storage roller and configured to detect
whether the banknote leaves the banknote temporary storage device;
a signal collecting unit, comprising a coded disk, a coded disk
signal sensor and a rubber wheel, wherein the coded disk and the
rubber wheel are arranged between the storage roller and the belt
standby roller via a same rotating shaft and the coiling belt
tightly engages with the rubber wheel and drives the rotation of
the rubber wheel; and a control system, comprising a central
processing unit, a calculation unit, a data storage unit and a
drive control unit, wherein the calculation unit is configured to
calculate radiuses of the rollers and rotating speeds of the drive
motors, the data storage unit is configured to store real-time
radiuses of the storage roller and the belt standby roller at an
end of an operation of the banknote temporary storage device, for
use when a next operation of the banknote temporary storage device
is started, the drive control unit is configured to control
rotating speeds of the first drive motor and the second drive motor
in real time, and the central processing unit is configured to
coordinate the units of the banknote temporary storage device to
control the operation of the banknote temporary storage device.
2. A method for storing a banknote by a banknote temporary storage
device, comprising: step 1 which comprises starting a banknote
temporary storage device, reading, from a data storage unit,
parameters recorded at an end of a last operation of the banknote
temporary storage device, wherein the parameters comprises a radius
R.sub.record of the storage roller and a radius r.sub.record of the
belt standby roller, and calculating a rotating speed for starting
a first drive motor of the banknote temporary storage device; step
2 which comprises detecting by a first photoelectric sensor whether
a banknote enters the banknote temporary storage device,
controlling the first drive motor to rotate at the rotating speed
calculated in step 1 if the banknote enters the banknote temporary
storage device, starting the signal collecting unit when the first
drive motor rotates at a constant speed, detecting a coded disk
signal with the coded signal sensor, recording the number N of
generated pulses and a period .DELTA.t of time for generating the N
pulses, calculating, with a known number M of pulses generated by
the coded disk during one turn and a known diameter D of the rubber
wheel which is coaxial with the coded disk and tightly engages with
the coiling belt, a moving distance L of the coiling belt during
the period .DELTA.t of time according to the formula L=(N/M)*.pi.D
(it is required that N is recorded when the first drive motor
rotates at the constant speed, and N is smaller than 3 times M),
and calculating a real-time linear speed V.sub.real-time of the
coiling belt when each banknote enters the banknote temporary
storage device according to the formula V.sub.real-time=L/.DELTA.t;
step 3 which comprises calculating, with a known current rotating
speed W of the storage roller, a real-time radius R.sub.real-time
according to the circular motion principle
R.sub.real-time=V.sub.real-time/W, and calculating, with a known
target speed V.sub.target to which the speed of the coiling belt
needs to be adjusted, a rotating speed W.sub.adjusted to which the
rotating speed of the first drive motor needs to be adjusted
according to the formula
W.sub.adjusted=V.sub.target/R.sub.real-time, to ensure that the
coiling belt uniformly moves at the target speed V.sub.target when
the banknote enters the banknote temporary storage device; step 4
which comprises repeating steps 2 and 3, to adjust the rotating
speed of the first drive motor when each banknote enters the
banknote temporary storage device in real time and ensure that the
coiling belt moves at the target speed V.sub.target; and step 5
which comprises resetting the coiling belt after storing all
banknotes to be stored, measuring a real-time radius r of the belt
standby roller and storing a real-time radius R of the storage
roller and the real-time radius r of the belt standby roller into
the data storage unit, for use when a next operation of the
banknote temporary storage device is started.
3. The method for storing a banknote by a banknote temporary
storage device according to claim 2, wherein, in steps 2 to 4,
while the first drive motor is rotating, the second drive motor is
in a braking state and the coiling belt is tightened by a load of
the banknote temporary storage device and a braking torque of the
second drive motor.
4. The method for storing a banknote by a banknote temporary
storage device according to claim 3, wherein, the process of
measuring a real-time radius r of the belt standby roller in step 5
comprises: starting the second drive motor with a predetermined
rotating speed w after a portion of the coiling belt is retracted
by the storage roller, such that the belt standby roller retracts
the coiling belt, and stopping the second drive motor when the
second sensor detects a banknote, to prevent the banknote from
leaving the banknote temporary storage device; during the process
that the second drive motor rotates and stops rotation after
reaching a constant speed, recording the number n of pulses
generated by the coded disk, recording a period .DELTA.t.sub.1 of
time of the process, and calculating a moving distance L.sub.1 of
the coiling belt during the process that the belt standby roller
rotates for the period .DELTA.t.sub.1 of time according to the
formula: L.sub.1=(n/M)*.pi.D; calculating a real-time linear speed
v of the coiling belt according to the formula:
v=L.sub.1/.DELTA.t.sub.1; and calculating a real-time radius r of
the belt standby roller according to the formula: r=v/w.
5. The method for storing a banknote by a banknote temporary
storage device according to claim 2, further comprising a method
for delivering the banknote out of the banknote temporary storage
device, wherein the method for delivering the banknote out of the
banknote temporary storage device comprises: step 6 which comprises
starting the banknote temporary storage device, reading the
parameters recorded in step 5, wherein the parameters comprise the
radius R of the storage roller and the radius r of the belt standby
roller, and calculating a rotating speed for starting the second
drive motor of the banknote temporary storage device; step 7 which
comprises detecting by a second photoelectric sensor whether a
banknote leaves the banknote temporary storage device, controlling
the second drive motor to rotate at the rotating speed calculated
in step 6 if the banknote leaves the banknote temporary storage
device, detecting a coded disk signal generated by the coded signal
sensor when the second drive motor rotates at a constant rotating
speed, recording the number n.sub.1 of generated pulses and a
period .DELTA.t.sub.2 of time for generating the n.sub.1 pulses,
calculating, with a known number M of pulses generated by the coded
disk during one turn and a known diameter D of the rubber wheel
which is coaxial with the coded disk and tightly engages with the
coiling belt, a moving distance L.sub.2 of the coiling belt during
the period .DELTA.t.sub.2 of time according to the formula:
L.sub.2=(n.sub.1/M)*.pi.D, (it is required that n.sub.1 is recorded
when the first drive motor rotates at the constant speed, and since
the first drive motor may stop rotation when each banknote enters
the banknote temporary storage device, n.sub.1 can not have a large
value and is smaller than 3 times M; and n.sub.1 is not associated
with M and may be not equal to M), and calculating a real-time
speed v.sub.1 of the coiling belt when each banknote leaves the
banknote temporary storage device according to the formula
v.sub.1=L.sub.2/.DELTA.t.sub.2; step 8 which comprises calculating,
with a known current rotating speed w.sub.1 of the belt standby
roller, a real-time radius r.sub.1 of the belt standby roller
according to the circular motion principle r.sub.1=v.sub.1/w.sub.1,
and calculating, with a known target speed V.sub.target to which
the speed of the coiling belt needs to be adjusted, a rotating
speed w.sub.adjusted to which the rotating speed of the second
drive motor needs to be adjusted according to the formula
w.sub.adjusted=V.sub.target/r.sub.1, to ensure that the coiling
belt uniformly moves at the target speed V.sub.target when the
banknote leaves the banknote temporary storage device; step 9 which
comprises repeating steps 7 and 8, to adjust the rotating speed of
the second drive motor when each banknote leaves the banknote
temporary storage device in real time and to ensure that the moving
speed of the coiling belt is the target speed V.sub.target; and
step 10 which comprises resetting the coiling belt after all
banknotes to be released leave the banknote temporary storage
device, measuring the real-time radius R.sub.1 of the belt standby
roller and storing the real-time radius R.sub.1 of the storage
roller and the real-time radius r.sub.1 of the belt standby roller
into the data storage unit, for use when a next operation of the
banknote temporary storage device is started.
6. The method for storing a banknote by a banknote temporary
storage device according to claim 5, wherein, in steps 7 to 9,
while the second drive motor is rotating, the first drive motor is
drived in a braking state and the coiling belt is tightened by a
load of the banknote temporary storage device and a braking torque
of the first drive motor.
7. The method for storing a banknote by a banknote temporary
storage device according to claim 6, wherein, the process of
measuring a real-time radius R.sub.1 of the storage roller in step
10 comprises: starting, by the belt standby roller, the first drive
motor with a predetermined rotating speed W.sub.start to retract a
portion of the coiling belt; starting recording the number of
pulses generated by the coded disk when the first drive motor
reaches a constant speed, recording the number N1 of pulses
generated by the coded disk and a period .DELTA.t.sub.3 of time
before the second drive motor stops rotation, and calculating a
moving distance L.sub.3 of the coiling belt during the process that
the banknote temporary storage roller rotates for the period
.DELTA.t.sub.3 of time according to the formula:
L.sub.3=(N.sub.1/M)*.pi.D; calculating the real-time linear speed
V.sub.1 of the coiling belt according to the formula
V.sub.1=L.sub.3/.DELTA.t.sub.3; and calculating the real-time
radius R.sub.1 of the storage roller according to the formula
R.sub.1=V.sub.3/W.sub.start.
Description
[0001] This application claims priority to Chinese patent
application No. 201310661267.0 titled "BANKNOTE TEMPORARY STORAGE
DEVICE AND BANKNOTE STORAGE METHOD THEREOF" filed with the Chinese
State Intellectual Property Office on Dec. 6, 2013, which is
incorporated herein by reference in its entirety.
FIELD
[0002] The present disclosure relates to a financial self-service
apparatus, particularly to a banknote temporary storage device
storing a banknote with a roller and a coiling belt, and a control
method for delivering a banknote into or out of the banknote
temporary storage device.
BACKGROUND
[0003] Presently, a common temporary storage device always uses
mechanisms such as rollers and a rolling belt. The storage device
includes a storage roller driven by a first drive motor, a belt
standby roller driven by a second drive motor and a coiling belt
with two ends fixed on the storage roller and the belt standby
roller respectively, which is wound around, and is retracted and
deployed between the storage roller and the belt standby roller.
The first drive motor and the second drive motor are controlled to
be started or stopped by a micro controller. This temporary storage
device operates in a way that the rollers cooperates with the
coiling belt to implement temporary storage of a banknote.
[0004] During operation of the temporary storage device, to ensure
equally spaced banknotes, it is required to ensure that speeds of
different portions of the coiling belt are constant and consistent
while the coiling belt is constantly tightened to improve the
tenseness of the coiling belt, whereby the storage capacity of the
storage roller is improved. According to a principle of circular
motion, a linear speed v is equal to an angular speed .omega. times
a radius r. To keep a constant banknote delivering speed, i.e., to
keep the linear speeds of the storage roller and the belt standby
roller constant, as the coiling belt is deployed and retracted
between the storage roller and the belt standby roller, radiuses of
the storage roller and the belt standby roller continually change,
therefore angular speeds of the first motor and the second motor
need to be adjusted timely according to the radiuses of the storage
roller and the belt standby roller.
[0005] In a conventional method for controlling the temporary
storage module, the radius increment .DELTA.X of the storage roller
is commonly estimated by using empirical values. The angular speeds
of the first motor and the second motor are continuously adjusted
according to the estimated radius increment .DELTA.X of the storage
roller and the determined radius increment .DELTA.Y of the belt
standby roller, thereby ensuring that both linear speeds of the
storage roller and the belt standby roller are constant and
consistent. The radius change .DELTA.X of the storage roller is an
estimated value, and the radius change .DELTA.Y of the belt standby
roller is a determined value setting according to the empirical
values, therefore the existing method does not have enough
accuracy, so that there is a difference between the linear speed of
the storage roller and that of the belt standby roller, which
causes loose of the coiling belt and even a cast of the coiling
belt.
[0006] Besides, the radius of the storage roller is also affected
by the thickness of the stored banknote, thus a real-time radius of
the storage roller can not be estimated accurately in the
conventional technology, and therefore, an accurate angular speed
can not be accurately calculated, which can not ensure a constant
linear speed of the storage roller. In a case the linear speed of
the storage roller has a big difference from that of the belt
standby reel, it is apt to cause the following problems: 1, unequal
spaces between banknotes on the storage roller, which causes a
waste of the coiling belt, reduces the storage capacity of the
storage roller, and can not satisfy a design requirement; and 2,
loose of the coiling belt and even cast of the coiling belt, which
increases a maintenance cost.
SUMMARY
[0007] To solve the problem of the loose or cast of the coiling
belt caused by the fact that the coiling belt does not has a
constant speed due to continually changed diameters of the storage
roller and the belt standby roller, a banknote temporary storage
device with a function of adjusting a rotating speed of a drive
motor in real time is provided according to the present disclosure,
which ensures a constant linear speed of the coiling belt.
[0008] A method for storing a banknote by a banknote temporary
storage device is provided according to the present disclosure,
which includes steps of delivering (storing) the banknote into and
delivering (releasing) the banknote out of the banknote temporary
storage device, and can adjust an angular speed of a drive motor in
real time when each banknote enters or leaves the banknote
temporary storage device, thereby ensuring a constant linear
speed.
[0009] The banknote temporary storage device includes a storage
roller driven by a first drive motor, a belt standby roller driven
by a second drive motor and a coiling belt with two ends fixed on
the storage roller and the belt standby roller respectively, which
is wound around, and is retracted and deployed between the storage
roller and the belt standby roller. The banknote temporary storage
device further includes: a first sensor, arranged at an inlet of
the banknote temporary storage device and configured to detect
whether a banknote enters the banknote temporary storage device; a
second sensor, arranged between the first sensor and the storage
roller and configured to detect whether the banknote leaves the
banknote temporary storage device; a signal collecting unit, which
includes a coded disk, a coded disk signal sensor and a rubber
wheel, where the coded disk and the rubber wheel are arranged
between the storage roller and the belt standby roller via a same
rotating shaft, and the coiling belt tightly engages with the
rubber wheel and drives the rotation of the rubber wheel; and a
control system, which includes a central processing unit, a
calculation unit, a data storage unit and a drive control unit,
where the calculation unit is configured to calculate radiuses of
the rollers and rotating speeds of the drive motors, the data
storage unit is configured to store real-time radiuses of the
storage roller and the belt standby roller at an end of an
operation of the banknote temporary storage device, for use when a
next operation of the banknote temporary storage device is started,
the drive control unit is configured to control rotating speeds of
the first drive motor and the second drive motor in real time, and
the central processing unit is configured to coordinate the units
of the banknote temporary storage device to control the operation
of the banknote temporary storage device.
[0010] The method for storing a banknote by a banknote temporary
storage device includes steps 1 to 5. Step 1 includes starting a
banknote temporary storage device, reading from a data storage unit
parameters recorded at an end of a last operation of the banknote
temporary storage device, where the parameters include a radius
R.sub.record of the storage roller and a radius r.sub.record of the
belt standby roller, and calculating a rotating speed for starting
a first drive motor of the banknote temporary storage device. Step
2 includes detecting by a first photoelectric sensor whether a
banknote enters the banknote temporary storage device, controlling
the first drive motor to rotate at the rotating speed calculated in
step 1 if the banknote enters the banknote temporary storage
device, starting the signal collecting unit when the first drive
motor rotates at a constant speed, detecting a coded disk signal
with the coded signal sensor, recording the number N of generated
pulses and a period .DELTA.t of time for generating the N pulses,
calculating, with a known number M of pulses generated by the coded
disk during one turn and a known diameter D of the rubber wheel
which is coaxial with the coded disk and tightly engages with the
coiling belt, a moving distance L of the coiling belt during the
period .DELTA.t of time according to the formula L=(N/M)*.pi.D (it
is required that N is recorded when the first drive motor rotates
at the constant speed, and N is smaller than 3 times M), and
calculating a real-time linear speed V.sub.real-time of the coiling
belt when each banknote enters the banknote temporary storage
device according to the formula V.sub.real-time=L/.DELTA.t. Step 3
includes calculating, with a known current rotating speed W of the
storage roller, a real-time radius R.sub.real-time according to the
circular motion principle R.sub.real-time=V.sub.real-time/W, and
calculating, with a known target speed V.sub.target to which the
speed of the coiling belt needs to be adjusted, a rotating speed
W.sub.adjusted to which the rotating speed of the first drive motor
needs to be adjusted according to the formula
W.sub.adjusted=V.sub.target/R.sub.real-time, to ensure that the
coiling belt uniformly moves at the target speed V.sub.target when
the banknote enters the banknote temporary storage device. Step 4
includes repeating steps 2 and 3, to adjust the rotating speed of
the first drive motor when each banknote enters the banknote
temporary storage device in real time and ensure that the coiling
belt moves at the target speed V.sub.target. Step 5 includes
resetting the coiling belt after storing all banknotes to be
stored, measuring a real-time radius r of the belt standby roller
and storing a real-time radius R of the storage roller and the
real-time radius r of the belt standby roller into the data storage
unit, for use when a next operation of the banknote temporary
storage device is started.
[0011] Preferably, in steps 2 to 4, while the first drive motor is
rotating, the second drive motor is in a braking state and the
coiling belt is tightened by a load of the banknote temporary
storage device and a braking torque of the second drive motor.
[0012] Specially, the process of measuring a real-time radius r of
the belt standby roller in step 5 includes: starting the second
drive motor with a predetermined rotating speed w after a portion
of the coiling belt is retracted by the storage roller, such that
the belt standby roller retracts the coiling belt, and stopping the
second drive motor when the second sensor detects a banknote, to
prevent the banknote from leaving the banknote temporary storage
device; during the process that the second drive motor rotates and
stops rotation after reaching a constant speed, recording the
number n of pulses generated by the coded disk, recording a period
.DELTA.t.sub.1 of time of the process, and calculating a moving
distance L.sub.1 of the coiling belt during the process that the
belt standby roller rotates for the period .DELTA.t.sub.1 of time
according to the formula: L.sub.1=(n/M)*.pi.Dc; calculating a
real-time linear speed v of the coiling belt according to the
formula: v=L.sub.1/.DELTA.t.sub.1; and calculating a real-time
radius r of the belt standby roller according to the formula:
r=v/w.
[0013] The method for storing a banknote by a banknote temporary
storage device further includes a method for delivering the
banknote out of the banknote temporary storage device. The method
for delivering a banknote out of the banknote temporary storage
device includes steps 6 to 10. Step 6 includes starting the
banknote temporary storage device, reading the parameters recorded
in step 5, where the parameters include the radius R of the storage
roller and the radius r of the belt standby roller, and calculating
a rotating speed for starting the second drive motor of the
banknote temporary storage device. Step 7 includes detecting by a
second photoelectric sensor whether a banknote leaves the banknote
temporary storage device, controlling the second drive motor to
rotate at the rotating speed calculated in step 6 if the banknote
leaves the banknote temporary storage device, detecting a coded
disk signal generated by the coded signal sensor when the second
drive motor rotates at a constant rotating speed, recording the
number n.sub.1 of generated pulses and a period .DELTA.t.sub.2 of
time for generating the n.sub.1 pulses, calculating, with a known
number M of pulses generated by the coded disk during one turn and
a known diameter D of the rubber wheel which is coaxial with the
coded disk and tightly engages with the coiling belt, a moving
distance L.sub.2 of the coiling belt during the period
.DELTA.t.sub.2 of time according to the formula
L.sub.2=(n.sub.1/M)*.pi.D (it is required that n.sub.1 is recorded
when the first drive motor rotates at the constant speed, and since
the first drive motor may stop rotation when each banknote enters
the banknote temporary storage device, n.sub.1 can not have a large
value and is smaller than 3 times M; and n.sub.1 is not associated
with M and may be not equal to M), and calculating a real-time
speed v.sub.1 of the coiling belt when each banknote leaves the
banknote temporary storage device according to the formula
v.sub.1=L.sub.2/.DELTA.t.sub.2. Step 8 includes calculating, with a
known current rotating speed w.sub.1 of the belt standby roller, a
real-time radius r.sub.1 of the belt standby roller according to
the circular motion principle r.sub.1=v.sub.1/w.sub.1, and
calculating, with a known target speed V.sub.target to which the
speed of the coiling belt needs to be adjusted, a rotating speed
w.sub.adjusted to which the rotating speed of the second drive
motor needs to be adjusted according to the formula
w.sub.adjusted=V.sub.target/r.sub.1, to ensure that the coiling
belt uniformly moves at the target speed V.sub.target when the
banknote leaves the banknote temporary storage device. Step 9
includes repeating steps 7 and 8, to adjust the rotating speed of
the second drive motor when each banknote leaves the banknote
temporary storage device in real time and to ensure that the moving
speed of the coiling belt is the target speed V.sub.target. Step 10
includes resetting the coiling belt after all banknotes to be
released leave the banknote temporary storage device, measuring the
real-time radius R.sub.1 of the belt standby roller and storing the
real-time radius R.sub.1 of the storage roller and the real-time
radius r.sub.1 of the belt standby roller into the data storage
unit, for use when a next operation of the banknote temporary
storage device is started.
[0014] Preferably, in steps 7 to 9, while the second drive motor is
rotating, the first drive motor of the banknote temporary storage
roller is drived in a braking state and the coiling belt is
tightened by a load of the banknote temporary storage device and a
braking torque of the first drive motor.
[0015] Preferably, the process of measuring the real-time radius
R.sub.1 of the storage roller in step 10 includes: starting, by the
belt standby roller, the first drive motor with a predetermined
rotating speed W.sub.start to retract a portion of the coiling
belt; starting recording the number of pulses generated by the
coded disk when the first drive motor reaches a constant speed,
recording the number N1 of pulses generated by the coded disk and a
period .DELTA.t.sub.3 of time before the second drive motor stops
rotation, and calculating a moving distance L.sub.3 of the coiling
belt during the process that the banknote temporary storage roller
rotates for the period .DELTA.t.sub.3 of time according to the
formula: L.sub.3=(N.sub.1/M)*.pi.D; calculating the real-time
linear speed V.sub.1 of the coiling belt according to the formula
V.sub.1=L.sub.3/.DELTA.t.sub.3; and calculating the real-time
radius R.sub.1 of the storage roller according to the formula
R.sub.1=V.sub.3/W.sub.start.
[0016] The banknote temporary storage device according to the
present disclosure includes a signal collecting unit, and
ingeniously use structures of the rubber wheel which is coaxial
with the coded disk and tightly engages with the coiling belt, the
coded disk and the coded disk signal sensor, so that the number of
rotation turns of the rubber wheel is obtained by recording the
number of rotation turns of the coded disk, the real-time speed of
the coiling belt when each banknote enters or leaves the banknote
temporary storage roller is calculated, the real-time radius of the
storage roller or the belt standby roller is obtained, and the
angular speed of the drive motor can be adjusted according to the
real-time radius, thereby ensuring that the coiling belt uniformly
moves at the target speed.
[0017] The method for storing a banknote by a banknote temporary
storage device according to the present disclosure includes steps
of delivering the banknote into and out of the banknote temporary
storage device. The real-time radius of the storage roller or the
belt standby roller is calculated when each banknote enters or
leaves the banknote temporary storage device, thereby adjusting a
rotating speed of a drive motor in real time based on the real-time
radius, to control a rotating speed of the storage roller or the
belt standby roller and thereby achieving a constant linear speed
of the coiling belt.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] FIG. 1 is a lateral view of a banknote temporary storage
device according to a preferred embodiment of the disclosure;
and
[0019] FIG. 2 is a stereogram of a signal collecting unit of a
banknote temporary storage device.
DETAILED DESCRIPTION
[0020] To further illustrate the banknote temporary storage device
according to the present disclosure, the embodiments of the
disclosure are described in detail in conjunction with
drawings.
[0021] FIG. 1 is a lateral view of an internal structure of a
banknote temporary storage device 100 according to a preferred
embodiment of the disclosure. The banknote temporary storage device
100 includes a first sensor 102, a second sensor 108, a storage
roller 109, a belt standby roller 110, a coiling belt 107, a
transmission path 101, a first drive motor 112, a second drive
motor 113, a micro controller 106, and a signal collecting unit
which includes a coded disk 103, a coded disk signal sensor 104 and
a rubber wheel 105.
[0022] The micro controller 106 controls the first drive motor 112
and the second drive motor 113. The first drive motor 112 drives
the storage roller 109, and the second drive motor 103 drives the
belt standby roller 110. Two ends of the coiling belt 107 are fixed
to the storage roller 109 and the belt standby roller 110
respectively. The coiling belt 107 is wound around, and is deployed
and retracted between the storage roller 109 and the belt standby
roller 110. A banknote 111 enters the banknote temporary storage
device 100 through the transmission path 101, and is stored on the
storage roller via the coiling belt 107. The first sensor 102 is
arranged at an inlet of the banknote temporary storage device, and
is configured to detect whether the banknote 111 enters the
banknote temporary storage device 100. The second sensor 108 is
arranged between the first sensor and the storage roller, and is
configured to detect whether the banknote leaves the banknote
temporary storage device 100.
[0023] As shown in FIG. 2, the coded disk 103 and the rubber wheel
105 are arranged between the storage roller 109 and the belt
standby roller 110 via a same rotating shaft, and the coiling belt
107 tightly engages with the rubber wheel 105 and drives the
rotation of the rubber wheel 105. When the coiling belt 107 drives
the rotation of the rubber wheel 105, the coded disk signal sensor
104 detects the number of pulses generated by the coded disk 103.
Since the coiling belt 107 tightly engages with the rubber wheel
105, the coiling belt 107 does not slip with the rubber wheel
105.
[0024] The micro controller 106 is a control system included in the
banknote temporary storage device 100. The control system includes
a central processing unit, a calculation unit, a data storage unit
and a drive control unit. The calculation unit is configured to
calculate radiuses of the rollers and rotating speeds of the drive
motors, the data storage unit is configured to store real-time
radiuses of the storage roller and the belt standby roller at an
end of an operation of the banknote temporary storage device, for
use when a next operation of the banknote temporary storage device
is started, the drive control unit is configured to control
rotating speeds of the first drive motor and the second drive motor
in real time, and the central processing unit is configured to
coordinate the units of the banknote temporary storage device to
control the operation of the banknote temporary storage device.
[0025] Preferably, the signal collecting unit may include a first
collecting unit and a second collecting unit. The first collecting
unit is configured to collect the number of pulses generated by the
coded disk 103 and a period of time spent on the generation of the
pluses when a real-time radius of the storage roller 109 is
calculated, and the second collecting unit is configured to collect
the number of pulses generated by the coded disk 103 and a period
of time spent on the generation of the pluses when a real-time
radius of the belt standby roller 110 is calculated.
[0026] A control method for storing a banknote into a temporary
storage device is described in conjunction with FIGS. 1 and 2.
[0027] When a banknote 111 is deliver into the banknote temporary
storage device 100, the storage roller 109 retracts the coiling
belt 107 actively and the belt standby roller 110 deploys the
coiling belt 107 in a braking manner.
[0028] Before the banknote temporary storage device 100 operates,
the micro controller 106 reads a current initial radius
R.sub.record of the storage roller 109 from the data storage unit,
and calculates an initial rotating speed W.sub.initial of the two
rollers according a target speed V.sub.target:
W.sub.initial=V.sub.target/R.sub.record.
[0029] The first drive motor 112 is started with the initial
rotating speed W when the first photoelectric sensor 102 detects
that the banknote 111 enters the banknote temporary storage
device.
[0030] When the first drive motor 112 operates at a constant speed,
the coded disk signal sensor 104 detects a signal of the coded disk
103. The micro controller 106 records the number N.sub.in of
generated pulses and a period .DELTA.t.sub.in of time for
generating the N.sub.in pulses. With a known constant number M of
pulses generated by the coded disk 103 during one turn and a known
constant diameter D of the rubber wheel 105, a moving distance
L.sub.in of the coiling belt 107 during the period .DELTA.t.sub.in
of time can be calculated according to the formula:
L.sub.in=(N.sub.in/M)*.pi.D.
[0031] Thus, a real-time linear speed V.sub.real-time of the
coiling belt 107 can be calculated when each banknote 111 enters
the banknote temporary storage device 100:
V.sub.real-time=L.sub.in/.DELTA.t.sub.in.
[0032] With a known current rotating speed W.sub.current of the
storage roller 109 (when the first banknote enters the banknote
temporary storage device 100, the speed of the storage roller 109
is an initial speed W.sub.initial), a real-time radius
R.sub.real-time can be calculated according to the formula:
R.sub.real-time=V.sub.real-time/W.sub.current.
[0033] With a known target speed V.sub.target to be adjusted, a
rotating speed W.sub.adjusted to which the speed of the storage
roller needs to be adjusted can be calculated according to the
following formula:
W.sub.adjust=V.sub.target/R.sub.real-time.
[0034] With the method above, the rotating speed of the storage
roller 109 is adjusted each time when the banknote 111 enters the
banknote temporary storage device 100, so that the linear speed of
the coiling belt is always the target speed V.sub.target as the
radius of the storage roller 109 changes.
[0035] During the process that the banknote 111 enters the banknote
temporary storage device 100, the belt standby roller is in a
braking state, to tighten the coiling belt 107.
[0036] A method for measuring a real-time radius r.sub.real-time of
the belt standby roller 100 after the process of that the banknote
111 enters the banknote temporary storage device 100 is finished is
described hereinafter. The method is as follows.
[0037] After the storage roller 109 retracts a portion of the
coiling belt 107, the second drive motor 113 is started with a
predetermined rotating speed w.sub.start such that the belt standby
roller 110 retracts the coiling belt 107. When the second sensor
detects the banknote 111, the second drive motor stops running to
prevent the banknote 111 from leaving the banknote temporary
storage device 100.
[0038] During the process that the second drive motor 113 rotates
and stops rotation after reaching a constant speed, the number
n.sub.in of pulses generated by the coded disk is recorded, a
period .DELTA.t.sub.in1 of time for the process is recorded, and a
moving distance L.sub.in1 of the coiling belt 107 during the
process that that the belt standby roller 110 rotates for the
period .DELTA.t.sub.in1 of time can be calculated according to the
formula: L.sub.in1=(n.sub.in/M)*.pi.D;
[0039] a real-time linear speed v.sub.real-time of the coiling belt
is further calculated according to the formula:
v.sub.real-time=L.sub.in1/.DELTA.t.sub.in1;
[0040] and a real-time radius r.sub.real-time of the belt standby
roller is further calculated according to the formula:
r.sub.real-time=v.sub.real-time/w.sub.start.
[0041] When the banknote temporary storage device 100 stops
operation, the current real-time radius R.sub.real-time of the
storage roller and the current real-time radius r.sub.real-time of
the belt standby roller are stored in the data storage unit, for
use when a next operation of the banknote temporary storage device
100 is started.
[0042] A principle for controlling the banknote temporary storage
device 100 to deliver the banknote 111 out of the banknote
temporary storage device 100 is described hereinafter.
[0043] When the banknote 111 is delivered out of the banknote
temporary storage device 100, the belt standby roller 110 retracts
the coiling belt 107 actively and the storage roller 109 retracts
the coiling belt 107 in a braking manner.
[0044] Before the banknote temporary storage device 100 operates,
the micro controller 106 reads a current initial radius
r.sub.record of the belt standby roller 110 from the data storage
unit, and calculates an initial rotating speed w.sub.initial of the
belt standby roller according to the target speed
V.sub.target:w.sub.initial=V.sub.target/r.sub.record.
[0045] During the process that the banknote 111 is delivered out of
the banknote temporary storage device 100, when the second drive
motor 113 reaches a constant speed, the coded disk signal sensor
104 detects a signal of the coded disk 103. The number n.sub.out of
generated pulses and a period .DELTA.t.sub.out of time for
generating the n.sub.out pulses are recorded. With the known number
M of pulses generated by the coded disk 103 during one turn and a
known diameter D of the rubber wheel 105 which is coaxial with the
coded disk 103 and tightly engages with the coiling belt 107, a
moving distance L.sub.out of the coiling belt 107 during the period
.DELTA.t.sub.out of time can be calculated according to the
formula: L.sub.out=(n.sub.out/M)*.pi.D.
[0046] Thus, a real-time linear speed v.sub.real-time out of the
coiling belt 107 can be calculated when the banknote 111 leaves the
banknote temporary storage device 100 according to the formula:
V.sub.real-time out=L.sub.out/.DELTA.t.sub.out.
[0047] With a known current rotating speed w.sub.current of the
belt standby roller 110 (when the first banknote enters the
banknote temporary storage device 100, the speed of the storage
roller 109 is an initial speed W.sub.initial), a real-time radius
r.sub.real-time out can be calculated according to the formula:
r.sub.real-time out=v.sub.real-time out/w.sub.current.
[0048] With the known target speed V.sub.target to which the speed
of the belt standby roller needs to be adjusted, a rotating speed
w.sub.adjusted to which the rotating speed of the belt standby
roller 110 needs to be adjusted can be calculated according to the
following formula:
w.sub.adjusted=V.sub.target/r.sub.real-time out.
[0049] With the method above, the rotating speed of the storage
roller 109 is adjusted each time when a banknote leaves the
banknote temporary storage device 100, so that the linear speed of
the coiling belt is always the target speed V.sub.target as the
radius of the roller changes.
[0050] When the banknote 111 is delivered out of the banknote
temporary storage device 100, the storage roller 109 is in a
braking state, to tighten the coiling belt 107.
[0051] A method for measuring a real-time radius R.sub.real-time
out of the storage roller 109 after the banknote 111 leaves the
banknote temporary storage device 100 is described hereinafter.
[0052] The first drive motor 112 is started with a predetermined
rotating speed W.sub.start to drive the storage roller 109 to
retract a portion of the coiling belt 107. When the first drive
motor reaches a constant speed, a number N.sub.out of pulses
generated by the coded disk 103 is recorded, and a period
.DELTA.t.sub.out1 of time for generating the pulses is recorded. A
moving distance L.sub.out1 of the coiling belt 107 during the
period .DELTA.t.sub.out1 of time that the storage roller 109
rotates can be calculated according to the formula:
L.sub.out1=(N.sub.out/M)*.pi.D;
[0053] A real-time linear speed V.sub.real-time out of the coiling
belt 107 is further calculated according to the formula:
V.sub.real-time out=L.sub.out1/.DELTA.t.sub.out1.
[0054] A real-time radius R.sub.real-time out of the storage roller
109 is further calculated according to the formula: R.sub.real-time
out=V.sub.real-time out/W.sub.start.
[0055] When the banknote temporary storage device 100 stops
operation, the current real-time radius R.sub.real-time out of the
storage roller and the current real-time radius r.sub.real-time out
of the belt standby roller 110 are stored in the data storage unit,
for use when a next operation of the banknote temporary storage
device 100 is started.
[0056] In the method for storing a banknote by a banknote temporary
storage device according to the embodiment, the banknote is
delivered into the banknote temporary storage device and delivered
out of the banknote temporary storage device, the real-time radius
of the storage roller or the belt standby roller can be calculated
when each banknote enters or leaves the banknote temporary storage
device, so that the rotating speed of the drive motor is adjusted
based on the real-time radius, to control the rotating speed of the
storage roller or the belt standby roller, thereby achieving a
constant speed of the coiling belt.
[0057] The foregoing embodiments are only preferred embodiments of
the disclosure. It should be noted that the preferred embodiments
according to the disclosure are not intended to limit the
disclosure. The scope of the disclosure is subject to the scope of
the claims. Those of skills in the art may make some variations and
improvements on the technical solutions of the disclosure without
departing from the spirit and scope of the technical solutions. All
simple variations and improvements made without departing from
spirit and scope of the technical solutions of the disclosure fall
in the scope of the technical solutions of the disclosure.
* * * * *